Declaration and payment of estimated tax.

Every bank, trust company, and building association, and all bonding, title, guaranty and fidelity companies, subject to the provisions of § 501(a) of the Revenue Act of 1975, shall make and file a declaration of estimated tax at such time or times and under such conditions, and shall make payments of such tax in such amounts and at such times and under such conditions as the Mayor shall, by rule, prescribe. Such payments shall not be in excess of the amount by which said tax was increased by provisions of this act.